157620736980 has 288 divisors, whose sum is σ = 555893065728. Its totient is φ = 35406201600.

The previous prime is 157620736961. The next prime is 157620737009. The reversal of 157620736980 is 89637026751.

157620736980 is a `hidden beast` number, since 1 + 5 + 7 + 620 + 7 + 3 + 6 + 9 + 8 + 0 = 666.

It is a super-2 number, since 2×157620736980² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 29608599 + ... + 29613921.

It is an arithmetic number, because the mean of its divisors is an integer number (1930184256).

Almost surely, 2^157620736980 is an apocalyptic number.

157620736980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157620736980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277946532864).

157620736980 is an abundant number, since it is smaller than the sum of its proper divisors (398272328748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157620736980 is a wasteful number, since it uses less digits than its factorization.

157620736980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5747 (or 5742 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 157620736980 in words is "one hundred fifty-seven billion, six hundred twenty million, seven hundred thirty-six thousand, nine hundred eighty".